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IBM CP/M Format [message #91534] Wed, 26 June 2013 00:47 Go to next message
cem is currently offline  cem
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Registered: May 2013
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Message-ID: <453@intelca.UUCP>
Date: Thu, 29-Nov-84 11:34:33 EST
Article-I.D.: intelca.453
Posted: Thu Nov 29 11:34:33 1984
Date-Received: Sat, 1-Dec-84 05:47:16 EST
Distribution: net
Organization: Intel, Santa Clara, Ca.
Lines: 16

The version of MS-DOS I have for the Zenith 150 comes with a utility
called RDCPM.COM. The purpose of which is to read CP/M-86 files on the
floppy. The $65,535 question is what is the format for this floppy
Specifically :
How Many Bytes/Sector ?
Interleave Facter ?
# of tracks before the Directory ?
A Parameter Block for it would be ideal.
Total storage of this format ? 180/320/360K

--Chuck
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Re: IBM CP/M Format [message #91585 is a reply to message #91534] Wed, 26 June 2013 00:47 Go to previous message
PEARSON is currently offline  PEARSON
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Message-ID: <6228@brl-tgr.ARPA>
Date: Fri, 30-Nov-84 10:50:28 EST
Article-I.D.: brl-tgr.6228
Posted: Fri Nov 30 10:50:28 1984
Date-Received: Tue, 4-Dec-84 06:00:19 EST
Sender: news@brl-tgr.ARPA
Organization: Ballistic Research Lab
Lines: 10


RDCPM for the Z-100 is designed to read Heath/Zenith CP/M and CP/M-85
formats (It was available before CP/M-86 on the Z-100).  Heath has
used 2 CP/M formats, 16*256 byte secotrs / track and 8*512 byte
secotrs per track. Apparently RDCPM figures out which you are using.

It doesn't work on the IBM, I tried.

Bill Pearson
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